module VectUtils (
collectAnnTypeBinders, collectAnnTypeArgs, isAnnTypeArg,
- splitClosureTy,
- mkPADictType, mkPArrayType,
- paDictArgType, paDictOfType,
- paMethod, lengthPA, replicatePA, emptyPA,
- polyAbstract, polyApply,
- lookupPArrayFamInst,
- hoistExpr, takeHoisted
+ collectAnnValBinders,
+ dataConTagZ, mkDataConTag, mkDataConTagLit,
+
+ newLocalVVar,
+
+ mkBuiltinCo, voidType, mkWrapType,
+ mkPADictType, mkPArrayType, mkPDataType, mkPReprType, mkPArray,
+ mkBuiltinTyConApps, mkClosureTypes,
+
+ pdataReprTyCon, pdataReprDataCon, mkVScrut,
+ prDictOfType, prDFunOfTyCon,
+ paDictArgType, paDictOfType, paDFunType,
+ paMethod, wrapPR, replicatePD, emptyPD, packByTagPD,
+ combinePD,
+ liftPD,
+ zipScalars, scalarClosure,
+ polyAbstract, polyApply, polyVApply, polyArity
) where
+import Vectorise.Monad
+import Vectorise.Vect
+import Vectorise.Builtins
-#include "HsVersions.h"
-
-import VectMonad
-
-import DsUtils
import CoreSyn
import CoreUtils
+import Coercion
import Type
import TypeRep
import TyCon
-import DataCon ( dataConWrapId )
+import DataCon
import Var
-import Id ( mkWildId )
-import MkId ( unwrapFamInstScrut )
-import PrelNames
-import TysWiredIn
-import BasicTypes ( Boxity(..) )
-
+import MkId
+import Literal
import Outputable
import FastString
+import Control.Monad
-import Control.Monad ( liftM, zipWithM_ )
collectAnnTypeArgs :: AnnExpr b ann -> (AnnExpr b ann, [Type])
collectAnnTypeArgs expr = go expr []
go bs (_, AnnLam b e) | isTyVar b = go (b:bs) e
go bs e = (reverse bs, e)
+collectAnnValBinders :: AnnExpr Var ann -> ([Var], AnnExpr Var ann)
+collectAnnValBinders expr = go [] expr
+ where
+ go bs (_, AnnLam b e) | isId b = go (b:bs) e
+ go bs e = (reverse bs, e)
+
isAnnTypeArg :: AnnExpr b ann -> Bool
-isAnnTypeArg (_, AnnType t) = True
+isAnnTypeArg (_, AnnType _) = True
isAnnTypeArg _ = False
-isClosureTyCon :: TyCon -> Bool
-isClosureTyCon tc = tyConName tc == closureTyConName
+dataConTagZ :: DataCon -> Int
+dataConTagZ con = dataConTag con - fIRST_TAG
-splitClosureTy :: Type -> (Type, Type)
-splitClosureTy ty
- | Just (tc, [arg_ty, res_ty]) <- splitTyConApp_maybe ty
- , isClosureTyCon tc
- = (arg_ty, res_ty)
+mkDataConTagLit :: DataCon -> Literal
+mkDataConTagLit = mkMachInt . toInteger . dataConTagZ
- | otherwise = pprPanic "splitClosureTy" (ppr ty)
+mkDataConTag :: DataCon -> CoreExpr
+mkDataConTag = mkIntLitInt . dataConTagZ
-isPArrayTyCon :: TyCon -> Bool
-isPArrayTyCon tc = tyConName tc == parrayTyConName
+splitPrimTyCon :: Type -> Maybe TyCon
+splitPrimTyCon ty
+ | Just (tycon, []) <- splitTyConApp_maybe ty
+ , isPrimTyCon tycon
+ = Just tycon
-splitPArrayTy :: Type -> Type
-splitPArrayTy ty
- | Just (tc, [arg_ty]) <- splitTyConApp_maybe ty
- , isPArrayTyCon tc
- = arg_ty
+ | otherwise = Nothing
- | otherwise = pprPanic "splitPArrayTy" (ppr ty)
+mkBuiltinTyConApp :: (Builtins -> TyCon) -> [Type] -> VM Type
+mkBuiltinTyConApp get_tc tys
+ = do
+ tc <- builtin get_tc
+ return $ mkTyConApp tc tys
-mkPADictType :: Type -> VM Type
-mkPADictType ty
+mkBuiltinTyConApps :: (Builtins -> TyCon) -> [Type] -> Type -> VM Type
+mkBuiltinTyConApps get_tc tys ty
= do
- tc <- builtin paDictTyCon
- return $ TyConApp tc [ty]
+ tc <- builtin get_tc
+ return $ foldr (mk tc) ty tys
+ where
+ mk tc ty1 ty2 = mkTyConApp tc [ty1,ty2]
+
+voidType :: VM Type
+voidType = mkBuiltinTyConApp voidTyCon []
+
+mkWrapType :: Type -> VM Type
+mkWrapType ty = mkBuiltinTyConApp wrapTyCon [ty]
+
+
+mkClosureTypes :: [Type] -> Type -> VM Type
+mkClosureTypes = mkBuiltinTyConApps closureTyCon
+
+mkPReprType :: Type -> VM Type
+mkPReprType ty = mkBuiltinTyConApp preprTyCon [ty]
+
+mkPADictType :: Type -> VM Type
+mkPADictType ty = mkBuiltinTyConApp paTyCon [ty]
mkPArrayType :: Type -> VM Type
mkPArrayType ty
+ | Just tycon <- splitPrimTyCon ty
= do
- tc <- builtin parrayTyCon
- return $ TyConApp tc [ty]
+ r <- lookupPrimPArray tycon
+ case r of
+ Just arr -> return $ mkTyConApp arr []
+ Nothing -> cantVectorise "Primitive tycon not vectorised" (ppr tycon)
+mkPArrayType ty = mkBuiltinTyConApp parrayTyCon [ty]
+
+mkPDataType :: Type -> VM Type
+mkPDataType ty = mkBuiltinTyConApp pdataTyCon [ty]
+
+mkPArray :: Type -> CoreExpr -> CoreExpr -> VM CoreExpr
+mkPArray ty len dat = do
+ tc <- builtin parrayTyCon
+ let [dc] = tyConDataCons tc
+ return $ mkConApp dc [Type ty, len, dat]
+
+mkBuiltinCo :: (Builtins -> TyCon) -> VM Coercion
+mkBuiltinCo get_tc
+ = do
+ tc <- builtin get_tc
+ return $ mkTyConApp tc []
+
+pdataReprTyCon :: Type -> VM (TyCon, [Type])
+pdataReprTyCon ty = builtin pdataTyCon >>= (`lookupFamInst` [ty])
+
+pdataReprDataCon :: Type -> VM (DataCon, [Type])
+pdataReprDataCon ty
+ = do
+ (tc, arg_tys) <- pdataReprTyCon ty
+ let [dc] = tyConDataCons tc
+ return (dc, arg_tys)
+
+mkVScrut :: VExpr -> VM (CoreExpr, CoreExpr, TyCon, [Type])
+mkVScrut (ve, le)
+ = do
+ (tc, arg_tys) <- pdataReprTyCon ty
+ return (ve, unwrapFamInstScrut tc arg_tys le, tc, arg_tys)
+ where
+ ty = exprType ve
+
+prDFunOfTyCon :: TyCon -> VM CoreExpr
+prDFunOfTyCon tycon
+ = liftM Var
+ . maybeCantVectoriseM "No PR dictionary for tycon" (ppr tycon)
+ $ lookupTyConPR tycon
+
paDictArgType :: TyVar -> VM (Maybe Type)
paDictArgType tv = go (TyVarTy tv) (tyVarKind tv)
go ty k | Just k' <- kindView k = go ty k'
go ty (FunTy k1 k2)
= do
- tv <- newTyVar FSLIT("a") k1
+ tv <- newTyVar (fsLit "a") k1
mty1 <- go (TyVarTy tv) k1
case mty1 of
Just ty1 -> do
| isLiftedTypeKind k
= liftM Just (mkPADictType ty)
- go ty k = return Nothing
+ go _ _ = return Nothing
+
-paDictOfType :: Type -> VM CoreExpr
-paDictOfType ty = paDictOfTyApp ty_fn ty_args
+-- | Get the PA dictionary for some type, or `Nothing` if there isn't one.
+paDictOfType :: Type -> VM (Maybe CoreExpr)
+paDictOfType ty
+ = paDictOfTyApp ty_fn ty_args
where
(ty_fn, ty_args) = splitAppTys ty
-paDictOfTyApp :: Type -> [Type] -> VM CoreExpr
-paDictOfTyApp ty_fn ty_args
- | Just ty_fn' <- coreView ty_fn = paDictOfTyApp ty_fn' ty_args
-paDictOfTyApp (TyVarTy tv) ty_args
- = do
- dfun <- maybeV (lookupTyVarPA tv)
- paDFunApply dfun ty_args
-paDictOfTyApp (TyConApp tc _) ty_args
- = do
- pa_class <- builtin paClass
- (dfun, ty_args') <- lookupInst pa_class [TyConApp tc ty_args]
- paDFunApply (Var dfun) ty_args'
-paDictOfTyApp ty ty_args = pprPanic "paDictOfTyApp" (ppr ty)
+ paDictOfTyApp :: Type -> [Type] -> VM (Maybe CoreExpr)
+ paDictOfTyApp ty_fn ty_args
+ | Just ty_fn' <- coreView ty_fn
+ = paDictOfTyApp ty_fn' ty_args
-paDFunApply :: CoreExpr -> [Type] -> VM CoreExpr
-paDFunApply dfun tys
- = do
- dicts <- mapM paDictOfType tys
- return $ mkApps (mkTyApps dfun tys) dicts
+ paDictOfTyApp (TyVarTy tv) ty_args
+ = do dfun <- maybeV (lookupTyVarPA tv)
+ liftM Just $ paDFunApply dfun ty_args
-paMethod :: (Builtins -> Var) -> Type -> VM CoreExpr
-paMethod method ty
- = do
- fn <- builtin method
- dict <- paDictOfType ty
- return $ mkApps (Var fn) [Type ty, dict]
+ paDictOfTyApp (TyConApp tc _) ty_args
+ = do mdfun <- lookupTyConPA tc
+ case mdfun of
+ Nothing
+ -> pprTrace "VectUtils.paDictOfType"
+ (vcat [ text "No PA dictionary"
+ , text "for tycon: " <> ppr tc
+ , text "in type: " <> ppr ty])
+ $ return Nothing
-lengthPA :: CoreExpr -> VM CoreExpr
-lengthPA x = liftM (`App` x) (paMethod lengthPAVar ty)
- where
- ty = splitPArrayTy (exprType x)
+ Just dfun -> liftM Just $ paDFunApply (Var dfun) ty_args
-replicatePA :: CoreExpr -> CoreExpr -> VM CoreExpr
-replicatePA len x = liftM (`mkApps` [len,x])
- (paMethod replicatePAVar (exprType x))
+ paDictOfTyApp ty _
+ = cantVectorise "Can't construct PA dictionary for type" (ppr ty)
-emptyPA :: Type -> VM CoreExpr
-emptyPA = paMethod emptyPAVar
-polyAbstract :: [TyVar] -> ((CoreExpr -> CoreExpr) -> VM a) -> VM a
-polyAbstract tvs p
- = localV
- $ do
- mdicts <- mapM mk_dict_var tvs
- zipWithM_ (\tv -> maybe (defLocalTyVar tv) (defLocalTyVarWithPA tv . Var)) tvs mdicts
- p (mk_lams mdicts)
+
+paDFunType :: TyCon -> VM Type
+paDFunType tc
+ = do
+ margs <- mapM paDictArgType tvs
+ res <- mkPADictType (mkTyConApp tc arg_tys)
+ return . mkForAllTys tvs
+ $ mkFunTys [arg | Just arg <- margs] res
where
- mk_dict_var tv = do
- r <- paDictArgType tv
- case r of
- Just ty -> liftM Just (newLocalVar FSLIT("dPA") ty)
- Nothing -> return Nothing
+ tvs = tyConTyVars tc
+ arg_tys = mkTyVarTys tvs
- mk_lams mdicts = mkLams (tvs ++ [dict | Just dict <- mdicts])
+paDFunApply :: CoreExpr -> [Type] -> VM CoreExpr
+paDFunApply dfun tys
+ = do Just dicts <- liftM sequence $ mapM paDictOfType tys
+ return $ mkApps (mkTyApps dfun tys) dicts
-polyApply :: CoreExpr -> [Type] -> VM CoreExpr
-polyApply expr tys
- = do
- dicts <- mapM paDictOfType tys
- return $ expr `mkTyApps` tys `mkApps` dicts
-lookupPArrayFamInst :: Type -> VM (TyCon, [Type])
-lookupPArrayFamInst ty = builtin parrayTyCon >>= (`lookupFamInst` [ty])
+paMethod :: (Builtins -> Var) -> String -> Type -> VM CoreExpr
+paMethod _ name ty
+ | Just tycon <- splitPrimTyCon ty
+ = liftM Var
+ . maybeCantVectoriseM "No PA method" (text name <+> text "for" <+> ppr tycon)
+ $ lookupPrimMethod tycon name
-hoistExpr :: FastString -> CoreExpr -> VM Var
-hoistExpr fs expr
+paMethod method _ ty
= do
- var <- newLocalVar fs (exprType expr)
- updGEnv $ \env ->
- env { global_bindings = (var, expr) : global_bindings env }
- return var
+ fn <- builtin method
+ Just dict <- paDictOfType ty
+ return $ mkApps (Var fn) [Type ty, dict]
-hoistPolyExpr :: FastString -> [TyVar] -> CoreExpr -> VM CoreExpr
-hoistPolyExpr fs tvs expr
- = do
- poly_expr <- closedV . polyAbstract tvs $ \abstract -> return (abstract expr)
- fn <- hoistExpr fs poly_expr
- polyApply (Var fn) (mkTyVarTys tvs)
+prDictOfType :: Type -> VM CoreExpr
+prDictOfType ty = prDictOfTyApp ty_fn ty_args
+ where
+ (ty_fn, ty_args) = splitAppTys ty
-takeHoisted :: VM [(Var, CoreExpr)]
-takeHoisted
+prDictOfTyApp :: Type -> [Type] -> VM CoreExpr
+prDictOfTyApp ty_fn ty_args
+ | Just ty_fn' <- coreView ty_fn = prDictOfTyApp ty_fn' ty_args
+prDictOfTyApp (TyConApp tc _) ty_args
= do
- env <- readGEnv id
- setGEnv $ env { global_bindings = [] }
- return $ global_bindings env
-
+ dfun <- liftM Var $ maybeV (lookupTyConPR tc)
+ prDFunApply dfun ty_args
+prDictOfTyApp _ _ = noV
-mkClosure :: Type -> Type -> Type -> CoreExpr -> CoreExpr -> CoreExpr -> CoreExpr -> VM CoreExpr
-mkClosure arg_ty res_ty env_ty pa_dict vfn lfn env
+prDFunApply :: CoreExpr -> [Type] -> VM CoreExpr
+prDFunApply dfun tys
= do
- mk <- builtin mkClosureVar
- return $ Var mk `mkTyApps` [arg_ty, res_ty, env_ty] `mkApps` [pa_dict, vfn, lfn, env]
+ dicts <- mapM prDictOfType tys
+ return $ mkApps (mkTyApps dfun tys) dicts
-mkClosureP :: Type -> Type -> Type -> CoreExpr -> CoreExpr -> CoreExpr -> CoreExpr -> VM CoreExpr
-mkClosureP arg_ty res_ty env_ty pa_dict vfn lfn env
+wrapPR :: Type -> VM CoreExpr
+wrapPR ty
= do
- mk <- builtin mkClosurePVar
- return $ Var mk `mkTyApps` [arg_ty, res_ty, env_ty] `mkApps` [pa_dict, vfn, lfn, env]
+ Just pa_dict <- paDictOfType ty
+ pr_dfun <- prDFunOfTyCon =<< builtin wrapTyCon
+ return $ mkApps pr_dfun [Type ty, pa_dict]
+
+replicatePD :: CoreExpr -> CoreExpr -> VM CoreExpr
+replicatePD len x = liftM (`mkApps` [len,x])
+ (paMethod replicatePDVar "replicatePD" (exprType x))
+
+emptyPD :: Type -> VM CoreExpr
+emptyPD = paMethod emptyPDVar "emptyPD"
+
+packByTagPD :: Type -> CoreExpr -> CoreExpr -> CoreExpr -> CoreExpr
+ -> VM CoreExpr
+packByTagPD ty xs len tags t
+ = liftM (`mkApps` [xs, len, tags, t])
+ (paMethod packByTagPDVar "packByTagPD" ty)
+
+combinePD :: Type -> CoreExpr -> CoreExpr -> [CoreExpr]
+ -> VM CoreExpr
+combinePD ty len sel xs
+ = liftM (`mkApps` (len : sel : xs))
+ (paMethod (combinePDVar n) ("combine" ++ show n ++ "PD") ty)
+ where
+ n = length xs
--- (clo <x1,...,xn> <f,f^>, aclo (Arr lc xs1 ... xsn) <f,f^>)
--- where
--- f = \env v -> case env of <x1,...,xn> -> e x1 ... xn v
--- f^ = \env v -> case env of Arr l xs1 ... xsn -> e^ l x1 ... xn v
+-- | Like `replicatePD` but use the lifting context in the vectoriser state.
+liftPD :: CoreExpr -> VM CoreExpr
+liftPD x
+ = do
+ lc <- builtin liftingContext
+ replicatePD (Var lc) x
-buildClosure :: [TyVar] -> [(Var,Var)] -> (Var,Var) -> Var -> CoreExpr -> CoreExpr -> VM (CoreExpr, CoreExpr)
-buildClosure tvs env (varg, larg) lv vbody lbody
+zipScalars :: [Type] -> Type -> VM CoreExpr
+zipScalars arg_tys res_ty
+ = do
+ scalar <- builtin scalarClass
+ (dfuns, _) <- mapAndUnzipM (\ty -> lookupInst scalar [ty]) ty_args
+ zipf <- builtin (scalarZip $ length arg_tys)
+ return $ Var zipf `mkTyApps` ty_args `mkApps` map Var dfuns
+ where
+ ty_args = arg_tys ++ [res_ty]
+
+scalarClosure :: [Type] -> Type -> CoreExpr -> CoreExpr -> VM CoreExpr
+scalarClosure arg_tys res_ty scalar_fun array_fun
= do
- let (venv_ty, venv, bind_venv) = mkVectEnv tys vs
- (lenv, bind_lenv) <- mkLiftEnv (Var lv) tys ls
- lenv_ty <- mkPArrayType venv_ty
+ ctr <- builtin (closureCtrFun $ length arg_tys)
+ Just pas <- liftM sequence $ mapM paDictOfType (init arg_tys)
+ return $ Var ctr `mkTyApps` (arg_tys ++ [res_ty])
+ `mkApps` (pas ++ [scalar_fun, array_fun])
- venv_bndr <- newLocalVar FSLIT("env") venv_ty
- lenv_bndr <- newLocalVar FSLIT("env") lenv_ty
+newLocalVVar :: FastString -> Type -> VM VVar
+newLocalVVar fs vty
+ = do
+ lty <- mkPDataType vty
+ vv <- newLocalVar fs vty
+ lv <- newLocalVar fs lty
+ return (vv,lv)
- let mono_vfn = mkLams [venv_bndr, varg]
- . bind_venv (Var venv_bndr)
- $ vbody `mkVarApps` vs `mkVarApps` [varg]
- mono_lfn = mkLams [lenv_bndr, larg]
- . bind_lenv (Var lenv_bndr) lv
- $ lbody `mkVarApps` (lv:ls) `mkVarApps` [larg]
+polyAbstract :: [TyVar] -> ([Var] -> VM a) -> VM a
+polyAbstract tvs p
+ = localV
+ $ do
+ mdicts <- mapM mk_dict_var tvs
+ zipWithM_ (\tv -> maybe (defLocalTyVar tv)
+ (defLocalTyVarWithPA tv . Var)) tvs mdicts
+ p (mk_args mdicts)
+ where
+ mk_dict_var tv = do
+ r <- paDictArgType tv
+ case r of
+ Just ty -> liftM Just (newLocalVar (fsLit "dPA") ty)
+ Nothing -> return Nothing
- vfn <- hoistPolyExpr FSLIT("vfn") tvs mono_vfn
- lfn <- hoistPolyExpr FSLIT("lfn") tvs mono_lfn
+ mk_args mdicts = [dict | Just dict <- mdicts]
- pa_dict <- paDictOfType venv_ty
+polyArity :: [TyVar] -> VM Int
+polyArity tvs = do
+ tys <- mapM paDictArgType tvs
+ return $ length [() | Just _ <- tys]
- vclo <- mkClosure arg_ty res_ty venv_ty pa_dict vfn lfn venv
- lclo <- mkClosureP arg_ty res_ty venv_ty pa_dict vfn lfn lenv
+polyApply :: CoreExpr -> [Type] -> VM CoreExpr
+polyApply expr tys
+ = do Just dicts <- liftM sequence $ mapM paDictOfType tys
+ return $ expr `mkTyApps` tys `mkApps` dicts
- return (vclo, lclo)
+polyVApply :: VExpr -> [Type] -> VM VExpr
+polyVApply expr tys
+ = do Just dicts <- liftM sequence $ mapM paDictOfType tys
+ return $ mapVect (\e -> e `mkTyApps` tys `mkApps` dicts) expr
- where
- vs = map fst env
- ls = map snd env
- tys = map idType vs
-
- arg_ty = idType varg
- res_ty = exprType vbody
-
-mkVectEnv :: [Type] -> [Var] -> (Type, CoreExpr, CoreExpr -> CoreExpr -> CoreExpr)
-mkVectEnv [] [] = (unitTy, Var unitDataConId, \env body -> body)
-mkVectEnv [ty] [v] = (ty, Var v, \env body -> Let (NonRec v env) body)
-mkVectEnv tys vs = (ty, mkCoreTup (map Var vs),
- \env body -> Case env (mkWildId ty) (exprType body)
- [(DataAlt (tupleCon Boxed (length vs)), vs, body)])
- where
- ty = mkCoreTupTy tys
-mkLiftEnv :: CoreExpr -> [Type] -> [Var]
- -> VM (CoreExpr, CoreExpr -> Var -> CoreExpr -> CoreExpr)
-mkLiftEnv lc [ty] [v]
+{-
+boxExpr :: Type -> VExpr -> VM VExpr
+boxExpr ty (vexpr, lexpr)
+ | Just (tycon, []) <- splitTyConApp_maybe ty
+ , isUnLiftedTyCon tycon
= do
- len <- lengthPA (Var v)
- return (Var v, \env lv body -> Let (NonRec v env)
- $ Case len lv (exprType body) [(DEFAULT, [], body)])
+ r <- lookupBoxedTyCon tycon
+ case r of
+ Just tycon' -> let [dc] = tyConDataCons tycon'
+ in
+ return (mkConApp dc [vexpr], lexpr)
+ Nothing -> return (vexpr, lexpr)
+-}
--- NOTE: this transparently deals with empty environments
-mkLiftEnv lc tys vs
- = do
- (env_tc, env_tyargs) <- lookupPArrayFamInst vty
- let [env_con] = tyConDataCons env_tc
-
- env = Var (dataConWrapId env_con)
- `mkTyApps` env_tyargs
- `mkApps` (lc : map Var vs)
-
- bind env lv body = let scrut = unwrapFamInstScrut env_tc env_tyargs env
- in
- Case scrut (mkWildId (exprType scrut)) (exprType body)
- [(DataAlt env_con, lv : vs, body)]
- return (env, bind)
- where
- vty = mkCoreTupTy tys
projects / ghc-hetmet.git / blobdiff